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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The viscosity of water is __________ than that of mercury.

None of these
Higher
Lower
Same as

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Hydraulics and Fluid Mechanics in ME
An air vessel is provided at the summit in a siphon to

Increase discharge
Increase velocity
Maintain pressure difference
Avoid interruption in the flow

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Hydraulics and Fluid Mechanics in ME
The velocity corresponding to Reynold number of 2000 is called

Lower critical velocity
Higher critical velocity
Super-sonic velocity
Sub-sonic velocity

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Hydraulics and Fluid Mechanics in ME
An average value of coefficient of velocity is

0.84
0.97
0.62
0.76

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Hydraulics and Fluid Mechanics in ME
Hydraulic accumulator is used for

Supplying energy when main supply fails
Supplying large quantities of oil for very short duration
Accumulating oil
Generally high pressures to operate hydraulic machines

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Hydraulics and Fluid Mechanics in ME
The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is

0.611 stoke
0.0116 stoke
0.116 stoke
0.0611 stoke

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